package com.atguigu.common.valid.validator;

import com.atguigu.common.valid.annotations.ListValue;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

public class ListValueConstraintValidatorForNumber implements ConstraintValidator<ListValue,Integer> {

    private Set<Integer> set = new HashSet<>();

    // 初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        if(vals.length <=0){
            return;
        }
        for (int val : vals){
            set.add(val);
        }
    }

    /**
     *
     *
     *
     * @param value  需要校验的值
     * @param context  校验的上下文环境信息
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {

        if(set.size()>0){
            return set.contains(value);
        }
        return false;
    }
}
